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  1. MariaDB Server
  2. MDEV-42070

handlersocket crashes after open_index with huge number of return fields

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Details

    • Can result in hang or crash

    Description

      If a client opens an index with a large, duplicate-inflated retfields column list and issues a modify-operation exec that the HandlerSocket worker thread's 8 MiB stack, crashing the mariadbd process.

      Reported by wwe

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-41054 USAGE-only account can read the HandlerSocket authentication secret and bypass SQL table privileges

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Confirmed
          links to

          Web Link #4142749

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              serg Sergei Golubchik
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:

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